Learn Genetics

An organism’s physical expression of a trait is called a(n)

• dominant trait

• genotype

• phenotype

• recessive trait

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What is it called when both alleles in a genotype are the same?

• Dominance

• Heterozygous

• Homozygous

• Recessiveness

Tags

NGSS.HS-LS3-1

What is it called when the alleles in a genotype are different?

• Dominance

• Heterozygous

• Homozygous

• Recessiveness

Tags

NGSS.HS-LS3-2

Which pair of alleles is an example of homozygous recessive?

• bb

• BB

• Bb

Tags

NGSS.HS-LS3-2

Which pair of alleles is an example of heterozygous alleles?

• ll

• LL

• Ll

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Hair color, height, eye color and freckles are examples of human traits. What do we call the physical expression of the genetic material of an organism?

• genetics

• heredity

• genotype

• phenotype

Tags

NGSS.HS-LS1-1

Which pair of alleles is an example of homozygous dominant?

• tt

• TT

• Tt

Tags

7.11(A), 7.11(B), 7.11(C)

What are physical characteristics of an organism?

• Alleles

• Genotypes

• Genes

• Traits

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-4

In a Punnett square, a lower case letter stands for a ____________ allele.

• dominant

• recessive

• homozygous

• heterozygous

Which of the following alleles is homozygous (purebred) recessive?

• Tt

• tt

• TT

• t